A wart on the foot is actually a common foot wart caused by human papillomavirus infection. The initial rash is the size of a pin cap and gradually increases to the size of a soybean or a fava bean. The first single occurrence, over time can be multiple appearances, usually no conscious symptoms, occasionally pressure pain. If you have a single wart or a small shape, you can use conservative treatment methods, namely drug therapy, commonly used acyclovir, vaxilovir, etc., depending on the different circumstances of each patient to decide, the topical drugs can choose crow’s nest or interferon gel to apply. However, the drug treatment takes longer and the effect is not obvious in some patients. At this time, other methods of treatment can be considered, such as carbon dioxide laser treatment, microwave freezing and other methods, which can remove the rash seen by the naked eye. The wound after removal should be cared for by wearing loose shoes or slippers as much as possible to avoid rubbing and squeezing of the affected area, and it is recommended to reduce activities to avoid pain, as well as to minimize water exposure to prevent wound infection. It is recommended to have a careful and thorough examination in the dermatology department to prevent recurrence. Wash your feet regularly with soap and pay attention to sterilization and cleanliness, which will help you recover from the disease.